Underwater lamp



FIG. 1 is a first perspective view of an underwater lamp showing my newdesign;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in the drawings depict portions of the underwaterlamp in which the design is embodied that form no part of the claimeddesign.

CLAIM The ornamental design for an underwater lamp, as shown anddescribed.